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HomeHomework HelpbiologyTelomerase Enzyme

Telomerase Enzyme

Telomerase is an enzyme that adds repetitive nucleotide sequences to the ends of chromosomes, known as telomeres, thereby extending their length and helping to maintain chromosomal stability during cell division. This process is crucial for cellular longevity and is particularly active in stem cells and cancer cells.

intermediate
2 hours
Biology
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Overview

Telomerase is a crucial enzyme that plays a significant role in maintaining the length of telomeres, the protective caps at the ends of chromosomes. By adding repetitive nucleotide sequences, telomerase helps prevent the loss of important genetic information during cell division. This function is vi...

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Key Terms

Telomere
The protective end of a chromosome that shortens with each cell division.

Example: Telomeres prevent chromosomes from fusing together.

Chromosome
A structure made of DNA and proteins that contains genetic information.

Example: Humans have 23 pairs of chromosomes.

Cell Division
The process by which a parent cell divides into two or more daughter cells.

Example: Mitosis is a type of cell division.

Aging
The process of becoming older, often associated with a decline in biological functions.

Example: Aging can lead to increased susceptibility to diseases.

Cancer
A disease characterized by uncontrolled cell growth and division.

Example: Cancer can arise from mutations in genes that regulate cell division.

Gene Therapy
A technique that modifies genes to treat or prevent disease.

Example: Gene therapy may involve introducing telomerase to extend cell life.

Related Topics

DNA Replication
The process by which DNA makes a copy of itself, crucial for cell division.
intermediate
Stem Cells
Cells that can differentiate into various cell types and have the potential for unlimited division.
advanced
Apoptosis
The process of programmed cell death, which is essential for maintaining healthy tissue.
intermediate

Key Concepts

TelomeresCell DivisionAgingCancer